opensbi.git/lib/utils/serial/sifive-uart.c, branch master

lib: serial: sifive-uart: add shared memory region for SiFive UART

2025-10-06T05:43:20Z

Add shared memory region so the driver has permission to access it in OpenSBI. Signed-off-by: Yu-Chien Peter Lin Reviewed-by: Anup Patel Link: https://lore.kernel.org/r/20250814111012.20151-1-peter.lin@sifive.com Signed-off-by: Anup Patel

lib: utils/serial: Ensure baudrate is non-zero before using

2022-07-30T06:09:42Z

RISC-V doesn't generate exceptions on divide-by-zero, but the result, all bits set, is not likely what people expect either. In all cases where we divide by baudrate there's a chance it's zero (when the DT it came from is "bad"). To avoid difficult to debug situations, leave baudrate dependent registers alone when baudrate is zero, as, also in all cases, it appears we can skip initialization of those registers and still [hopefully] have a functioning UART. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel

lib: serial: Clean up coding style in sifive-uart.c

2022-07-30T06:09:19Z

Signed-off-by: Andrew Jones Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: fix pointer of type 'void *' used in arithmetic

2022-01-21T16:28:12Z

Using "void *" in arithmetic causes errors with strict compiler settings: "error: pointer of type 'void *' used in arithmetic [-Werror=pointer-arith]" Avoid these by calculating on "char *" where 1-byte data size is assumed. Signed-off-by: Jukka Laitinen Reviewed-by: Dong Du Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: sbi: Simplify console platform operations

2021-04-28T11:28:23Z

Instead of having console_putc() and console_getc() callbacks in platform operations, it will be much simpler for console driver to directly register these operations as device to the sbi_console implementation. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Xiang W

lib: utils/serial: Skip baudrate config if input frequency is zero

2020-05-01T04:06:13Z

We should skip baudrate config for UART8250 and SiFive UART when input frequency is zero. Signed-off-by: Anup Patel Reviewed-by: Atish Patra Reviewed-by: Alistair Francis

lib: serial: Fix coding style issues

2020-03-10T05:08:08Z

This fixes various coding style issues found in the serial codes. No functional changes. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

platform: Move platform common to lib/utils.

2019-06-19T04:18:56Z

Currently, platform/common contains platform/non-platform specific common minimal drivers and libraries. This is helpful is all platforms are built within opensbi framework. Move them to lib/utils so that any external platform code also can reuse the minimalistic drivers or other common libraries. This patch doesn't introduce any functional changes. Signed-off-by: Atish Patra Acked-by: Anup Patel